What was the Indian territory during the civil war?

During the American Civil War (1861-1865), the Indian Territory primarily referred to the area that is now Oklahoma. This territory was home to several Native American tribes, many of whom were divided in their loyalties, with some supporting the Confederacy and others the Union. The conflict led to significant disruption in the region, including battles and the displacement of Native American populations. The aftermath of the war ultimately resulted in changes to treaties and land agreements affecting the tribes in the territory.